Document Detail

Atypical fetal voice processing in preeclamptic pregnancy.
MedLine Citation:
PMID:  21057322     Owner:  NLM     Status:  In-Process    
OBJECTIVE: To compare fetal heart rate (HR) response to the mother's voice in pregnancies complicated by preeclampsia with those of fetuses in uneventful, normotensive pregnancies.
METHOD: Fifty fetuses (n = 22, preeclampsia; n = 28, uneventful, normotensive pregnancies) between 32 and 40 weeks gestational age were recruited. Each fetus was presented with a 2-min no-sound baseline period followed by a 2-min voice period during which an audio recording of his/her mother reading a story was played through a loud speaker over the maternal abdomen at an average of 95 dBA followed by a 2-min no-voice offset period. HR was recorded continuously.
RESULTS: Fetuses in the preeclamptic group showed no response to the mother's voice when it was played. In comparison, fetuses in the uneventful, normotensive group responded to the mother's voice with a HR increase.
CONCLUSION: Fetuses in pregnancies complicated by preeclampsia show atypical auditory processing of the mother's voice. Such atypical responding may reflect a delay in auditory system maturation, functional elevation of sensorineural threshold, or decreased thyroid hormone.
Barbara S Kisilevsky; Jaclyn E Dorland; Melissa L Swansburg; Sylvia M J Hains; C Ann Brown; Graeme N Smith
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of developmental and behavioral pediatrics : JDBP     Volume:  32     ISSN:  1536-7312     ISO Abbreviation:  J Dev Behav Pediatr     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006933     Medline TA:  J Dev Behav Pediatr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  34-40     Citation Subset:  IM    
School of Nursing, Queen's University, Kingston, Ontario, Canada.
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Grant Support
//Canadian Institutes of Health Research

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